1. Asociación para el Desarrollo Económico y Sostenible de El Espino (APRODESE), Chinandega, Nicaragua
2. UNAN-León, León, Nicaragua
3. Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
4. Pan American Health Organization, San Salvador, El Salvador
5. Faculty of Health and Society, Malmö University, Malmö, Sweden
6. Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK